I think the change isn't quite unnecesary but it was not implemented properly. In my opinion it should be an option so users with a poor vision can enable it and let the rest of us with the smaller avatar and name size.

I'm not the only person that thinks the font should change. I think the font should be determined by the device's set font size or maybe a configurable in-app slider. Not this. This just looks visually bad.

There is literally no reason to increase size of the names and icons when Smart phones/tablets from LG, Apple, Samsung, and other phone brands, have many options to zoom in on everything for those who has vision problems in accessibility settings.

Well, yes, I agree with this.
I think the best case is to be able to manually configure it, but in the case that isn't possible or will not be done, I think too the font size was just fine before and now it looks too big.

My Android just updated when I had to restart my phone due to keyboard issues and
The new size for usernames is seriously messing with my vision and hurting my eyes. P l e a s e at least give us the option to toggle back to the previous size.